SiC颗粒增强铝基复合材料/半金属材料干摩擦磨损特性  

DRY SLIDING TRIBOLOGICAL CHARACTERISTICS OF SiC PARTICLE-REINFORCED ALUMINUM COMPOSITES AGAINST SEMI-METALLIC FRICTIONAL MATERIAL

作　　者：陈跃[1] 沈百令[2] 张永振[2] 倪锋[2] 邢建东[1] 

机构地区：[1]西安交通大学机械工程学院,西安710049 [2]洛阳工学院材料工程系,洛阳471039

出　　处：《复合材料学报》2002年第3期56-60,共5页Acta Materiae Compositae Sinica

基　　金：河南省自然科学基金资助项目 (9840 42 5 0 0 );河南省 1998年杰出青年基金项目 ()

摘　　要：采用自制的销盘式摩擦磨损试验机研究了三种颗粒增强铝基复合材料及灰铸铁 (HT2 5 0 )与半金属摩擦材料配副的干摩擦磨损性能。结果表明 :在试验条件下 ,复合材料的耐磨性能高于灰铸铁 (HT2 5 0 ) ,其中复合材料Al- 10 % Si/ 30 % Si C(14 μm)的平均磨损率小于灰铸铁的三分之一 ;复合材料的摩擦系数与 HT2 5 0相当。而且从摩擦系数稳定性和摩擦系数达到最大值所需的时间来考察 ,复合材料的性能优于 HT2 5 0。结果表明 ,颗粒增强铝基复合材料可以取代 HT2 5 0 ,用于汽车刹车盘类摩阻件 。The dry sliding tribological characteristics were investigated with a self-made block-disk tester in the sliding of SiC particle-reinforced aluminum composites and gray cast iron (HT250) against semi-metallic frictional materials. The experimental results indicate that the wear resistance of SiC particle reinforced composites is higher than that of gray cast iron. Among three SiC particle reinforced composites, the wear rate of Al-10%Si/30%SiC (14 μm) is about one third less than that of gray cast iron which is commonly used to make brake disks, while the frictional coefficient is about the same for gray cast iron and SiC particle reinforced composites. Based on the experimental results, the authors suggest that the SiC particle-reinforced aluminum-matrix composite should be one of the suitable materials for making vehicle-braking components.

关 键 词：SIC颗粒 陶资颗粒 铝基复合材料 摩擦磨损 汽车 刹车盘 摩阻材料 半金属材料 碳化硅 

分 类 号：U465.6[一般工业技术—材料科学与工程] TB333[机械工程—车辆工程]